POWER FREQUENCY WITHSTAND VOLTAGE TEST SET

The HMYDJ-300kVA/600kV oil-immersed, insulated-tube, cascaded power-frequency withstand voltage test set consists of two 300kVA/300kV oil-immersed transformers with insulated tubes connected in series to produce a combined output voltage of 600kV; the primary transformer is grounded, while the secondary transformers are isolated from ground by insulated supports.

• Rated Capacity 300 kVA
• Power Supply AC 380 V ±10%, 50 Hz
• Low-Voltage Range 0–600 V, 0–790 A
• High-Voltage Range 0–600 kV, 0–0.5 A
• Instrument Sampling Voltage 0–100 V
• Basic Accuracy of Meter 0.5% FS ±3 digits
• Overall Accuracy of the Entire System 4%
• Total Timing Range 0–9999 s
• Manual Speed Control Rise: 2–5000 V/s; Fall: 2–8000 V/s
• Automatic Segmented Rise Rate 0–5000 V/s; Return-to-Zero Rate: 0–10000 V/s
• Alarm Voltage Setting Standard ≥ 1.1 times the maximum test voltage